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General| Brand | Mitsubishi Heavy Industries |
|---|---|
| Model | SRK28HJ |
| Category | Air Conditioner |
| Language | English |
Details on the features of the SRK series split air conditioners.
Explanation of the model naming convention for the air conditioners.
Technical specifications for SRK28HJ (Indoor/Outdoor units).
Operational limits and environmental conditions for the unit.
Physical dimensions of the indoor unit for installation planning.
Wiring diagram for the SRK28HJ model.
Explanation of the remote controller's buttons and indicators.
Details on how the flap operates in AUTO, Memory, and Swing modes.
How to use the back-up switch for basic operation.
Details on automatic operation modes and temperature settings.
Settings for comfort timers based on room temperature.
Setting of turn-on and turn-off timers up to 12 hours.
How night time turn off adjusts temperature settings.
How to adjust temperature settings and compressor/fan control.
Details on fan speed settings and AUTO fan control.
Explanation of the heating system, including hot start and defrost.
Explanation of DRY operation modes and blocks.
Control to prevent dew condensation during cooling.
How to prevent frost on the indoor heat exchanger.
Details on the automatic defrosting operation.
How to manually initiate defrosting for testing.
How high-pressure conditions control outdoor fan and compressor.
Overload protection for heating operation on 40 type models.
Details on high power operation mode.
Details on economy operation mode.
How the unit indicates abnormalities via flashing lamps.
Important safety precautions for installation and operation.
Guidelines for selecting the installation location for the indoor unit.
Guidelines for selecting the installation location for the outdoor unit.
Maximum piping length and vertical height difference limits.
Steps for fixing the installation board for the indoor unit.
Procedures for drilling holes and installing sleeves.
Steps for installing the sleeve with the unit.
Steps for preparing the indoor unit for wiring connection.
How to apply protective tape to cables.
How to shape and route the drain pipe.
Steps for mounting the indoor unit rear cover.
Steps for installing the outdoor unit on a firm base.
How to connect indoor and outdoor unit wiring correctly.
How to prepare refrigerant pipes before connection.
Procedures for connecting refrigerant pipes using a torque wrench.
Steps for purging air from the refrigerant system.
How to insulate the refrigerant pipe connection.
Performing a trial run to check for refrigerant leaks.
Setting the remote controller for continuous operation during trial run.
Standard operating data (pressure, temperature difference, current).
Information on the effective operating distances for the remote controller.
A flowchart for troubleshooting common unit issues.
How self-diagnosis indicators on the indoor unit signal defects.
Troubleshooting guide for outdoor unit and indoor fan motor issues.
Step-by-step diagnostic procedures for unit malfunctions.
Chart correlating thermistors/thermostat with operation and faults.
Procedure to check if the remote controller is functioning correctly.
Procedure for purging impurities from the refrigerant system using a vacuum pump.
Steps for charging refrigerant into the system, including additional amounts.
How operations can be set via power supply ON-OFF.
How to modify the PCB for power supply remote operation.
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